In mathematics, composite numbers also known as composites in Mathematics are numbers that have more than 2 factors, not like prime numbers that have only one factor, i.e. 1 and the number itself. Composite numbers are all natural numbers that are not prime numbers since they can be divided by more than two numbers.
Therefore
The smallest composite number is 4. The smallest composite number of 2 digits is 10.
4 is a composite number because there are 2 variables. One is 1 × 4 = 4 and the other is 2 × 2= 4.
